Derive the following relations for the the limit state design of balanced rectangular RCC beam (a) Depth of the neutral axis, X, = 0.479 d (b) Limiting BM, M, = 0.138 f bd2 (c) Steel area, A = 4.78 x 10-4 f bd Where, %3D ck Width of beam = b Depth of beam = d Characteristic strength of concrete = f, MPa ck Characteristic strength of steel = 415 MPa and modulus of elasticity of steel = 2 x 105 MPa

Structural Analysis
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Chapter2: Loads On Structures
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Derive the following relations for the the limit state
design of balanced rectangular RCC beam
(a) Depth of the neutral axis, X, = 0.479 d
(b) Limiting BM, M, = 0.138 f bd2
(c) Steel area, A = 4.78 x 10-4 f bd
Where,
%3D
ck
Width of beam = b
Depth of beam = d
Characteristic strength of concrete
= f, MPa
Characteristic strength of steel = 415 MPa
and modulus of elasticity of steel
= 2 x 105 MPa
Transcribed Image Text:Derive the following relations for the the limit state design of balanced rectangular RCC beam (a) Depth of the neutral axis, X, = 0.479 d (b) Limiting BM, M, = 0.138 f bd2 (c) Steel area, A = 4.78 x 10-4 f bd Where, %3D ck Width of beam = b Depth of beam = d Characteristic strength of concrete = f, MPa Characteristic strength of steel = 415 MPa and modulus of elasticity of steel = 2 x 105 MPa
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